CN1964120A - Normal pressure air suction type operation and cooling fuel cell - Google Patents
Normal pressure air suction type operation and cooling fuel cell Download PDFInfo
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- CN1964120A CN1964120A CNA2005101100953A CN200510110095A CN1964120A CN 1964120 A CN1964120 A CN 1964120A CN A2005101100953 A CNA2005101100953 A CN A2005101100953A CN 200510110095 A CN200510110095 A CN 200510110095A CN 1964120 A CN1964120 A CN 1964120A
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- fuel cell
- air
- hydrogen
- supply device
- normal pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The related normal-air suction fuel cell comprises: two cell modules shared one front and back end, a set of air supply device on module top, and a set of hydrogen supply device connected with hydrogen inlet and outlet on module ends. Wherein, the air exhaust ends of two modules are set oppositely to form a channel. Compared with prior art, this invention is low cost and compact, and needs less power consumption.
Description
Technical field
The present invention relates to fuel cell, relate in particular to a kind of normal pressure air suction type operation and cooled fuel cell.
Background technology
Electrochemical fuel cell is a kind of device that hydrogen and oxidant can be changed into electric energy and product.The internal core parts of this device are membrane electrode (Membrane Electrode Assembly are called for short MEA), and membrane electrode (MEA) is made up of as carbon paper a proton exchange membrane, two porous conductive materials of film two sides folder.The catalyst that contains the initiation electrochemical reaction of even tiny dispersion on two boundary faces of film and carbon paper is as the metal platinum catalyst.The membrane electrode both sides can electrochemistry will take place with conductive body to be sent out and answers the electronics that generates in the process, draws by external circuit, constitutes current circuit.
At the anode tap of membrane electrode, fuel can pass porousness diffusion material (carbon paper) by infiltration, and electrochemical reaction takes place on catalyst surface, lose electronics, form cation, cation can pass proton exchange membrane by migration, arrives the other end cathode terminal of membrane electrode.At the cathode terminal of membrane electrode, contain the gas of oxidant (as oxygen), as air, pass porousness diffusion material (carbon paper), and the generation electrochemical reaction obtains electronics on catalyst surface, forms anion by infiltration.The cation of coming in the anion and the anode tap migration of cathode terminal formation reacts, and forms product.
Adopting hydrogen is fuel, and the air that contains oxygen is in the Proton Exchange Membrane Fuel Cells of oxidant (or pure oxygen is an oxidant), and fuel hydrogen has just produced hydrogen cation (or being proton) in the catalytic electrochemical reaction of anode region.Proton exchange membrane helps the hydrogen cation to move to the cathodic region from the anode region.In addition, proton exchange membrane is separated the air-flow and the oxygen containing air-flow of hydrogen fuel, they can not mixed mutually and produces explosion type reaction.
In the cathodic region, oxygen obtains electronics on catalyst surface, forms anion, and moves the hydrogen cation reaction of coming, reaction of formation product water with the anode region.In the Proton Exchange Membrane Fuel Cells that adopts hydrogen, air (oxygen), anode reaction and cathode reaction can be expressed in order to following equation:
Anode reaction: H
2→ 2H
++ 2e
Cathode reaction: 1/2O
2+ 2H
++ 2e → H
2O
In typical Proton Exchange Membrane Fuel Cells, membrane electrode (MEA) generally all is placed in the middle of the pole plate of two conductions, and quarter is milled by die casting, punching press or machinery in the surface that every guide plate contacts with membrane electrode, and formation is the guiding gutter of one or more at least.These guide plates can be the pole plates of metal material, also can be the pole plates of graphite material.Fluid duct on these guide plates and guiding gutter import fuel and oxidant the anode region and the cathodic region on membrane electrode both sides respectively.In the structure of a Proton Exchange Membrane Fuel Cells monocell, only there is a membrane electrode, the membrane electrode both sides are respectively the baffler of anode fuel and the baffler of cathode oxidant.These bafflers are both as current collector plate, and also as the mechanical support on membrane electrode both sides, the guiding gutter on the baffler acts as a fuel again and enters the passage of anode, cathode surface with oxidant, and as the passage of taking away the water that generates in the fuel cell operation process.
In order to increase the gross power of whole Proton Exchange Membrane Fuel Cells, two or more monocells can be connected into battery pack or be unified into battery pack by the mode that tiles usually by straight folded mode.In straight folded, in-line battery pack, can there be guiding gutter on the two sides of a pole plate, and wherein one side can be used as the anode guide face of a membrane electrode, and another side can be used as the cathode diversion face of another adjacent membranes electrode, and this pole plate is called bipolar plates.A series of monocell connects together by certain way and forms a battery pack.Battery pack tightens together by front end-plate, end plate and pull bar usually and becomes one.
A typical battery stack generally includes: the water conservancy diversion import and the flow-guiding channel of (1) fuel and oxidant gas are distributed to fuel (hydrogen-rich gas that obtains as hydrogen, methyl alcohol or methyl alcohol, natural gas, gasoline) and oxidant (mainly being oxygen or air) in the guiding gutter of each anode, cathode plane equably after reforming; (2) import and export and the flow-guiding channel of cooling fluid (as water) are evenly distributed to cooling fluid in each battery pack inner cooling channel, and the heat absorption that hydrogen in the fuel cell, the exothermic reaction of oxygen electrochemistry are generated is also taken battery pack out of and dispelled the heat; (3) outlet of fuel and oxidant gas and corresponding flow-guiding channel, fuel gas and oxidant gas are when discharging, and portability goes out the liquid that generates in the fuel cell, the water of steam state.Usually, the import and export of all fuel, oxidant, cooling fluid are all opened on the end plate of fuel battery or on two end plates.
The normal pressure air suction type operation of single module and cooled fuel cell are to adopt a blower fan, cover with the whole fuel battery air chute end face of afflux cover with single module, and in the perforate of the centre position of air flow collection cover, tapping links to each other with the inlet scoop of blower fan; When blower fan was worked, because the effect of air flow collection cover can produce negative pressure, the drive air entered fuel cell pack from the opposite side of fuel cell pack.
The defective of above-mentioned fuel cell is: a blower fan all need be arranged on the afflux end face of the air conducting groove of each fuel cell module, and each blower fan all will consume the power of its fuel cell itself, and battery module combination back volume is big, Heavy Weight, cost are higher.
Summary of the invention
Purpose of the present invention is exactly that a kind of compact conformation, cost is low, power consumption is few normal pressure air suction type operation and cooled fuel cell are provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions: normal pressure air suction type operation and cooled fuel cell, it is characterized in that, this fuel cell comprises two fuel cell modules, one cover air supply device, one cover hydrogen supply device, before shared one of described two fuel cell modules, end plate, the air of these two fuel cell module air baffles sucks end face and is located at the outside, air exhalation end face is located at the inboard, and the air exhalation end face of these two fuel cell modules is oppositely arranged, the middle air exhalation passage that forms, described air supply device is located at the top of two fuel cell modules, and the hydrogen on the described hydrogen supply device front or rear end plate shared with being located at two fuel cell modules advances, outlet connects.
The air of described two fuel cell module air baffles sucks end face and is provided with screen pack.
The bottom sealing of the air exhalation passage that forms in the middle of described two fuel cell modules, the top is communicated with the air intake of air supply device.
Described air supply device is a blower fan, and this blower fan comprises air flow collection cover, inlet scoop, air outlet, and the air that the air exhalation passage in the middle of two fuel cell modules is breathed out is sucked by the inlet scoop by air flow collection cover, and air outlet is discharged.
Described air flow collection cover is connected with two fuel cell module top seals.
Described hydrogen supply device comprises hydrogen container, row's hydrogen electromagnetically operated valve, and described hydrogen container is connected with the hydrogen inlet of fuel cell, and described row's hydrogen electromagnetically operated valve is connected with the hydrogen outlet of fuel cell.
Compared with prior art, the side of all air conducting grooves of two modules of the present invention is relative, an and shared blower fan, not only air is not easy to leak outside, also can reduce the volume and the weight of fuel cell generation, save the material of blower fan, reduce the cost of fuel cell, reduce the power consumption penalty problem that a plurality of blower fans cause.The forward and backward end plate of two shared unifications of module can make assembling easily simple, stow join neat, convenient.
Description of drawings
Fig. 1 is the decomposing schematic representation of fuel cell of the present invention;
Fig. 2 is the structural representation of fuel cell of the present invention.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
The present invention adopts two fuel cell modules, and a shared forward and backward end plate.The monocell number unanimity of these two fuel cell modules, length is the same, can be by the forward and backward end plate assembling of two unifications.During assembling, that the air suction of all fuel cell air flow guide plates is corresponding with the water conservancy diversion end face of the formation of breathing out.Under such situation, we just can adopt a blower fan to supply air.Specifically as shown in Figure 1: 1,2 be respectively the fuel cell module heap.3,4 be respectively these two fuel cell modules shared forward and backward end plate.The inlet scoop 6 of blower fan 7 links to each other with air flow collection cover 5 centre position perforates place.13,14 are the positive and negative electrode lead-in wire.Air from a side end face 9 that the air conducting groove of individual module fuel cell pack 1 forms and the opposite side end face of corresponding individual module fuel cell pack 2 enter, discharge by the air outlet 8 of suction-type blower fan again.Among the figure 15 is meant the end layer overlay screen pack that the air conducting groove of No. 1 heap forms, and comes dust and impurity in the blocks air.That side of No. 2 corresponding heaps equally also has such one deck screen pack.Among the figure 10 is hydrogen inlets of fuel cell, 11 hydrogen outlets for row's hydrogen electromagnetically operated valve, and 12 are row's hydrogen electromagnetically operated valve.
Embodiment
As shown in Figure 2, normal pressure air suction type operation and the cooled fuel cell electricity generation system formed by two fuel cell modules, heavily be about 7.5Kg, heap length and width height is of a size of 155mm * 132mm * 140mm, this fuel cell pack comprises membrane electrode, guide plate, flow-collection mother-board, front and back end plate, fastening pull rod, also comprise air, hydrogen supply device, this air supply device comprises shared blower fan 7, air flow collection cover 5, this hydrogen supply device comprises hydrogen container (figure does not show), row's hydrogen electromagnetically operated valve 12, hydrogen enters 11 discharges from 10.Because blower fan is a suction-type, by the effect generation negative pressure of air flow collection cover 5, air enters from the air flow channel end face that is covered with one deck air strainer 15 of two fuel cell modules respectively, is discharged by fan outlet 8 again.So the power of a fuel cell generation can reach 200～400W, is the twice of the power of single fuel cell generation.Two fuel cell modules voltage about exportable 40～80V that is together in series, voltage about exportable 20～40V is together in parallel.
Claims (6)
1. normal pressure air suction type operation and cooled fuel cell, it is characterized in that, this fuel cell comprises two fuel cell modules, one cover air supply device, one cover hydrogen supply device, before shared one of described two fuel cell modules, end plate, the air of these two fuel cell module air baffles sucks end face and is located at the outside, air exhalation end face is located at the inboard, and the air exhalation end face of these two fuel cell modules is oppositely arranged, the middle air exhalation passage that forms, described air supply device is located at the top of two fuel cell modules, and the hydrogen on the described hydrogen supply device front or rear end plate shared with being located at two fuel cell modules advances, outlet connects.
2. normal pressure air suction type operation according to claim 1 and cooled fuel cell is characterized in that, the air of described two fuel cell module air baffles sucks end face and is provided with screen pack.
3. normal pressure air suction type operation according to claim 1 and cooled fuel cell is characterized in that, the bottom sealing of the air exhalation passage that forms in the middle of described two fuel cell modules, and the top is communicated with the air intake of air supply device.
4. according to claim 1 or 3 described normal pressure air suction type operation and cooled fuel cells, it is characterized in that, described air supply device is a blower fan, this blower fan comprises air flow collection cover, inlet scoop, air outlet, the air that air exhalation passage in the middle of two fuel cell modules is breathed out is sucked by the inlet scoop by air flow collection cover, and air outlet is discharged.
5. normal pressure air suction type operation according to claim 4 and cooled fuel cell is characterized in that, described air flow collection cover is connected with two fuel cell module top seals.
6. normal pressure air suction type operation according to claim 1 and cooled fuel cell, it is characterized in that, described hydrogen supply device comprises hydrogen container, row's hydrogen electromagnetically operated valve, described hydrogen container is connected with the hydrogen inlet of fuel cell, and described row's hydrogen electromagnetically operated valve is connected with the hydrogen outlet of fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101100953A CN100517844C (en) | 2005-11-07 | 2005-11-07 | Normal pressure air suction type operation and cooling fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101100953A CN100517844C (en) | 2005-11-07 | 2005-11-07 | Normal pressure air suction type operation and cooling fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1964120A true CN1964120A (en) | 2007-05-16 |
| CN100517844C CN100517844C (en) | 2009-07-22 |
Family
ID=38083075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101100953A Active CN100517844C (en) | 2005-11-07 | 2005-11-07 | Normal pressure air suction type operation and cooling fuel cell |
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| Country | Link |
|---|---|
| CN (1) | CN100517844C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617324A (en) * | 2015-01-09 | 2015-05-13 | 马志啟 | Fuel battery pack with testing function |
| CN106887614A (en) * | 2017-01-23 | 2017-06-23 | 杰锋汽车动力系统股份有限公司 | A kind of fuel battery air feeding mechanism |
-
2005
- 2005-11-07 CN CNB2005101100953A patent/CN100517844C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617324A (en) * | 2015-01-09 | 2015-05-13 | 马志啟 | Fuel battery pack with testing function |
| CN104617324B (en) * | 2015-01-09 | 2017-02-22 | 苏州象雄测控技术有限公司 | Fuel battery pack with testing function |
| CN106887614A (en) * | 2017-01-23 | 2017-06-23 | 杰锋汽车动力系统股份有限公司 | A kind of fuel battery air feeding mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100517844C (en) | 2009-07-22 |
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Owner name: SHANGHAI SHEN-LI HIGH TECH CO., LTD. Effective date: 20131223 Owner name: STATE GRID SHANGHAI ELECTRIC POWER COMPANY Free format text: FORMER OWNER: SHANGHAI SHEN-LI HIGH TECH CO., LTD. Effective date: 20131223 |
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Free format text: CORRECT: ADDRESS; FROM: 201401 FENGXIAN, SHANGHAI TO: 200002 HUANGPU, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131223 Address after: 200002 Nanjing East Road, Shanghai, No. 181, No. Patentee after: State Grid Shanghai Municipal Electric Power Company Patentee after: Shanghai Shen-Li High Tech Co., Ltd. Address before: 201401, Fengxian Shanghai Industrial Development Zone, dragon Yang Industrial Park, an international 27 Patentee before: Shanghai Shen-Li High Tech Co., Ltd. |